Manual Técnico Transmissão Automática Isuzu JR403-E (ATSG)

Technical Manual for Isuzu JR403-E Automatic Transmission (ATSG) INGLES MANUAL 

This manual is the ultimate tool for mechanics, repairers, and enthusiasts working with the JR403-E automatic transmission, used in Isuzu vehicles and light trucks (such as the GMC 3500, Isuzu NPR, among others).

Produced by ATSG, the guide offers a detailed step-by-step process for diagnosing, maintaining, and completely overhauling the unit.

📋 What you will find in this manual (Index):
Self-Diagnosis and Code Recovery: Guide to identifying electronic faults through error codes.

Electrical Component Check: Detailed tests for sensors and wiring.

Solenoid Actuation Table: Essential diagrams for understanding gear shifting.

Line Pressure Table: Reference values for hydraulic tests.

Complete Disassembly and Assembly: Sequential procedures for safely opening and closing the transmission.

Subassembly Review: Internal detailing of each transmission part.

Valve Body: Exploded view and assembly guide.

Location of Checkballs, Holes, and Filters: Critical information to avoid serious errors in valve body assembly.